Quote: What are you guys using for air filters? I notice if I take mine off I can Rev above 9200 rpms. Is there a air cleaner that can handle high rpms and cfm?
Or do you just run without them?
For a long time I used a K&N flat panel filter that fit inside my Harwood Mini-Aero scoop. I had to build the framework to mount it inside the scoop but it worked out well. The AFR tended to richen up gradually above 6500rpm but not enough to worry about. I think the Fram equivalent I used for a while actually flowed better. I never oiled the K&N element. The most recent engine is a 500ci B with Indy intake and 1150 Holley.
